package com.guigu.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.guigu.pojo.Cart;
import org.apache.ibatis.annotations.Param;

public interface CartMapper extends BaseMapper<Cart> {

    //根据用户id统计购物车数量
    public int querygwCartnum(@Param("uid") int uid);

}
